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Basic scalar parameter compatibility checks

Group: Native types · Category: language · File: native_types_scalar_params.php

References: - PHP native scalar parameter types

Analyzer results

AnalyzerVersionResultDiagnostics
phan 6.0.7Phan 6.0.7 php-ast version 1.1.3 PHP version used to run Phan: 8.5.9 Pass
native_types_scalar_params.php:25: Argument 1 ($value) is 'x' of type string but \Conformance\Tests\NativeTypesScalarParams\takesInt() takes int defined at /Users/megurine/repo/php/php-typing-conformance/conformance/tests/native_types_scalar_params.php:14 [PhanTypeMismatchArgumentReal]
native_types_scalar_params.php:26: Argument 1 ($value) is 1 of type int (value: 1) but \Conformance\Tests\NativeTypesScalarParams\takesString() takes string defined at /Users/megurine/repo/php/php-typing-conformance/conformance/tests/native_types_scalar_params.php:18 [PhanTypeMismatchArgumentReal]
phpstan 2.2.8PHPStan - PHP Static Analysis Tool 2.2.8 Pass reported Lv.5+
native_types_scalar_params.php:25: Parameter #1 $value of function Conformance\Tests\NativeTypesScalarParams\takesInt expects int, string given. [identifier=argument.type] [reported-from-level=5]
native_types_scalar_params.php:26: Parameter #1 $value of function Conformance\Tests\NativeTypesScalarParams\takesString expects string, int given. [identifier=argument.type] [reported-from-level=5]
With strict-rules
native_types_scalar_params.php:25: Parameter #1 $value of function Conformance\Tests\NativeTypesScalarParams\takesInt expects int, string given. [identifier=argument.type]
native_types_scalar_params.php:26: Parameter #1 $value of function Conformance\Tests\NativeTypesScalarParams\takesString expects string, int given. [identifier=argument.type]
psalm 6.16.1Psalm 6.16.1@f1f5de594dc76faf8784e02d3dc4716c91c6f6ac
next: 7.0.0-beta19
Pass
native_types_scalar_params.php:25: Argument 1 of Conformance\Tests\NativeTypesScalarParams\takesInt expects int, but 'x' provided [InvalidScalarArgument]
native_types_scalar_params.php:26: Argument 1 of Conformance\Tests\NativeTypesScalarParams\takesString expects string, but 1 provided [InvalidScalarArgument]
mago 1.46.0mago 1.46.0 Pass
native_types_scalar_params.php:25: Invalid argument type for argument #1 of `Conformance\Tests\NativeTypesScalarParams\takesInt`: expected `int`, but found `string('x')`. [invalid-argument]
native_types_scalar_params.php:26: Invalid argument type for argument #1 of `Conformance\Tests\NativeTypesScalarParams\takesString`: expected `string`, but found `int(1)`. [invalid-argument]
mir 0.70.1mir 0.70.1 Pass
native_types_scalar_params.php:25: InvalidArgument: Argument $value of takesInt() expects 'int', got '"x"' [MIR0201]
native_types_scalar_params.php:26: InvalidArgument: Argument $value of takesString() expects 'string', got '1' [MIR0201]
phpantom 0.9.0phpantom_lsp 0.9.0 Pass
native_types_scalar_params.php:25: Argument 1 ($value) expects int, got 'x' [type_mismatch_argument]
native_types_scalar_params.php:26: Argument 1 ($value) expects string, got 1 [type_mismatch_argument]
intelephense 1.18.5intelephense 1.18.5 Pass
native_types_scalar_params.php:25: Expected type 'int'. Found ''x''. [P1006]
native_types_scalar_params.php:26: Expected type 'string'. Found '1'. [P1006]
phpy 0.2.0phpy 0.2.0 Pass
native_types_scalar_params.php:25: Argument '1' passed to Conformance\Tests\NativeTypesScalarParams\takesInt() is expected to be of type int, string given
native_types_scalar_params.php:26: Argument '1' passed to Conformance\Tests\NativeTypesScalarParams\takesString() is expected to be of type string, int given
qodana 262.8665.325Qodana 262.8665.325 Pass
native_types_scalar_params.php:25: Parameter ''x'' type is not compatible with declaration when using strict type matching [PhpParamsInspection]
native_types_scalar_params.php:25: Parameter ''x'' type is not compatible with declaration [PhpStrictTypeCheckingInspection]
native_types_scalar_params.php:26: Parameter '1' type is not compatible with declaration when using strict type matching [PhpParamsInspection]
native_types_scalar_params.php:26: Parameter '1' type is not compatible with declaration [PhpStrictTypeCheckingInspection]
noverify 0.5.5NoVerify, version 0.5.5: built on: 2025.04.22 14:36:46 OS: r-kuchinskas arm64 Commit: 4774b82f8adc53fbef38f95e97af4b953b4d1529 Fail

No diagnostics reported.

Expectation diff
Line 25: Expected 1 error(s)
Line 26: Expected 1 error(s)
steins 0.1.5steins 0.1.5 (2026-08-12 revision 39b4cc1) Pass
native_types_scalar_params.php:25: argument "x" to takesInt() cannot become int $value — proven TypeError (strict mode) [type.argument-mismatch]
native_types_scalar_params.php:26: argument 1 to takesString() cannot become string $value — proven TypeError (strict mode) [type.argument-mismatch]
phpstan-strict 2.2.8PHPStan - PHP Static Analysis Tool 2.2.8 Pass
native_types_scalar_params.php:25: Parameter #1 $value of function Conformance\Tests\NativeTypesScalarParams\takesInt expects int, string given. [identifier=argument.type]
native_types_scalar_params.php:26: Parameter #1 $value of function Conformance\Tests\NativeTypesScalarParams\takesString expects string, int given. [identifier=argument.type]
psalm-next 7.0.0-beta19Psalm 7.0.0-beta19@7e751c06a756fa64dc4c759c09fe4a173afcb433 Pass
native_types_scalar_params.php:25: Argument 1 of Conformance\Tests\NativeTypesScalarParams\takesInt expects int, but 'x' provided [InvalidScalarArgument]
native_types_scalar_params.php:26: Argument 1 of Conformance\Tests\NativeTypesScalarParams\takesString expects string, but 1 provided [InvalidScalarArgument]

Source

<?php

declare(strict_types=1);

namespace Conformance\Tests\NativeTypesScalarParams;

/**
 * Basic scalar parameter compatibility checks.
 *
 * References:
 * - PHP native scalar parameter types
 */

function takesInt(int $value): void
{
}

function takesString(string $value): void
{
}

takesInt(1);
takesString('ok');

takesInt('x'); // E: string is not accepted by int parameter
takesString(1); // E: int is not accepted by string parameter